Step 1: put ladder on side of carriage house.
Step 2: climb up ladder until head is about a foot below the bottom of the window.
Step 3: freeze in sheer terror.
Step 3a: imagine the Latino neighbors looking at the stupid gringo on the ladder and laughing.
Step 3b: it doesn't help.
Step 3c: imagine the redneck neighbors looking at the stupid dandy on the ladder.
Step 3d: shut up, it's still not helping.
Step 4: after ten minutes, admit defeat. Go back inside the carriage house and figure out how to remove the storm window from the inside, standing on the floor as God intended.
See how it's held on with these strips? Remove those, and ease the window in through the frame.
Step 6: scrape old paint until it gets boring, then sit down to blog the experience, with a frosty, refreshing Coca-Cola from your own refrigerator.
I can only imagine that not getting scared on the ladder is a matter of practice. I used to be very wary on stepladders, but got used to that. It's not the height -- I can lean out the same window over the same precipice and laugh. It's the vivid mental image of how much it would hurt if the ladder, an implement which I fundamentally do not trust, would fall down.
Perhaps scaffolding is the answer. If it looked more stable, that would be good enough. But I have to figure out something; these eaves really need paint. I guess I could buy a lift truck or a cherry picker. I always wanted a cherry picker anyway. Those look fun. Too bad they cost way more than my house(s).
Hmm. Or not: Ebay lists a 300 lb rated lift platform with extending stabilizers for only $2300 buy-now price. That's pretty darned tempting. This house is really high.